Table 1.

Composition of WT and transgenic plants

	WT1	WT2	397-1	397-6	397-9	397-10	Prob > |t|
Lignin*
Klason	20.5 ± 0.0	20.0 ± 1.2	17.8 ± 0.4	16.2 ± 0.0	15.8 ± 0.1	16.2 ± 0.7	0.005
Acid-soluble	3.3 ± 0.1	3.9 ± 0.2	4.7 ± 0.4	5.0 ± 0.0	4.4 ± 0.2	4.6 ± 0.4	0.015
Total lignin	23.7 ± 0.1	23.9 ± 1.4	22.5 ± 0.0	21.2 ± 0.1	20.1 ± 0.1	20.8 ± 1.0	0.022
Polysaccharide*
Rhamnan	0.4 ± 0.0	0.5 ± 0.2	0.6 ± 0.1	0.5 ± 0.0	0.4 ± 0.0	0.6 ± 0.0	0.391
Arabinan	0.5 ± 0.0	0.4 ± 0.0	0.6 ± 0.1	0.4 ± 0.0	0.4 ± 0.0	0.5 ± 0.0	0.765
Xylan	16.8 ± 0.1	15.8 ± 0.0	17.9 ± 0.9	18.1 ± 0.0	17.2 ± 0.2	17.3 ± 0.3	0.043
Mannan	2.9 ± 0.2	3.1 ± 0.3	2.8 ± 0.3	2.6 ± 0.0	2.6 ± 0.0	2.6 ± 0.1	0.023
Galactan	1.5 ± 0.3	1.7 ± 0.3	1.2 ± 0.2	1.4 ± 0.0	0.8 ± 0.0	1.0 ± 0.0	0.070
Glucan	38.3 ± 0.9	42.2 ± 1.5	43.2 ± 1.7	41.1 ± 0.6	43.8 ± 0.1	44.7 ± 1.2	0.149
Uronic acid	10.9 ± 0.1	11.2 ± 0.7	8.2 ± 0.7	8.6 ± 0.9	8.7 ± 0.4	9.2 ± 0.8	0.002

Values are means ± SE (n = 2 for lignin and polysaccharide analysis). Prob > |t| value in bold shows significant changes using JMP analysis (P < 0.05).

^*Values are expressed as weight percent based on vacuum-dried extractive free wood weight.